Concrete mixer



May 23, E95@ A. G. zlcovlcH CONCRETE MXER 4 Sheets-Sheet l Filed Feb.14, 1947 H m V O Z a A.

CONCRETE MIXER 4 SheetsShee-t 2 Filed Feb. 14, 1947 INIl/ENTOR./7/7/#0/9 bank/7 BYW May 23, 1950 A. G. zlcovxcH 25,632

CONCRETE MIXER Filed Feb. 14, 1947 4 Sheets-Sheet 3 F1Ei 4 4BY QM' A. G.ZICOVICH CONCRETE MIXER may 23, 195o 4 Sheets-Sheet 4 Filed Feb. 14,1947 F1E El INVENTOR.

/7/7/0/75/ Z/'faw'r/ Patented May 23, 1950 :CONCRETE Anthony G..Zicovch, San vrJose, Calihfassig'nor of one-half to Arthur W.:Ca1dwell,Sanderse,

Calif.

Application February 14, 1.947,.;,Serialj1iip...7.32

10f0laims. 1

'Thepresent invention relates to concrete and .cement mixing apparatus,and 'is concerned more vlparticularly with an improved apparatus Vofthis .character for use in a '.batchplant to mix 'batches .fofmaterialfor delivery to trucks.

V.Inlbatch plants which are used-selectively for delivering aggregate.directly to trucks .or truck- .type mixers or .for deliveringmixed'batchespf concrete to trucks, it is .customary .to provide a,batch mixer atan .elevated location .in .the batch ,iplant .requiringspecial apparatus for .delivery .of -theaggregate and cement thereto.`.Such mixing apparatus is heavy and requires an .expensive `reimportstructure when placed on .the Vbatch plant Eframe itself. In manyinstances batch .plants which 4have been ,installed .without :suchmixing apparatus and which `are usedgsolely for rdelivery `of aggregateand. cement .require .expenesi-vefalterations for installing such.mixing ap- .;paratus and inmany instances the cost ,is pro- .nibitive.The instant invention is designed -to provide ,101'. a mixer.installation .of the batch type ,which .can be easily -installed rinalmost any existing ibatch @plant fAccordingly-it is ageneraiobject ,ofthe invention to provide an improvedbatch plant Ahav- A-singmeans'or themixing ofconcrete inbatches.

,sA-ffurtherlobject of the invention. isto .provide e. zbatchzplanthaving a exible and'economcal r3 installation ifor mixing batches of:concretefor delivery: to trucks.

' Another-object Aof Ythe invention is -fto provide -a .-mixer'sforbatches of concrete which V,cafn .;be .rusediin connectionfwith:aiconventionaLarrange iment'fof aggregatebins and whichfwill notinterfere :with fthe delivery .of .aggregate :,to1 trucks.

sAnother object ofithezinvention is :,tozprovideia ibatchgconcrete mixerwhich isfadjustablebetween a loading .position and. a dischargingposition.

A5Affurtherobject of the inventionV isitoprovide `'mixing apparatusattaining .the '.foregoingsobjects 'rwhichfean be constructed 'andmounted .insa fsimple :and .economical manner.

SGther objects and. advantages Aof :thei invention ewillf be apparentfrom the following description --t fa preferred embodiment of V.theinvention ftaken in conjuction withthe accompanying .draw-.- ingsf in-Wh-ich IFigure =1 is a sidev elevational :viewfof earbatchiplantemploying. a. mixer construction: in'accordance with the instantinvention.

4Figure 2i is an endelevational-'view of', thel dis- .charge'end of themixer.

"10 'dischargemeans -l' 0"f or selective deli-very of different types pfaggregate yor cement 4toY-a dis- .charge lspout vIlla having a -exibleendportion mb. The height of "the discharge-means Igfb yfrom :the ground:level H is such as -to provide a trucl:

'15 station atl la so lthat the 1trucks'can-be :drivenfdi--rectlybelowthe discharge means for delivery o f material thereto.

Associated withzthe :biny structure Hl there is iprovided vamixer l2 Nofconventional*construction -zo and :including .avrctary drum supported bvthe rollers '1.31011 :aircme AN which imeypelef mount suitable 'drivemeans fortheidrum of jthe'jmixer. .The .drive means .ilustreicd le .anelectric .meier "|15 suitably..connectedithrciieheeearibcx ISaand mixer.The .mixer 'llgisprcviedwith the .usuel upwardlycneniiiaintalschcpner.16 enddiechaige ...meansp ieadinetca d cwnwardiyextending diS- .charae .chute 1I'8. ".Theichutel ,maybe adjusted o by.means .of .e iimeirme,tic `cr hydraulic .cylinder .mechanism lapivotcdtca .denendinsrcrticn .lia

I.40 extension. L41). of .the fname., t4.

y.To `.prcvild.e..for .mcvementpf .tlrcmixerircm rits -lower pcsitipnshawn. in .Figure .'1 tc .an .elevated.pcsitionshownlinf'igure..3,.themixergframe .Mis provided.. ,at cachide with .three .rcllers 2. 2

45 .which .engage .an .aseccieted `.inclined ,track `2.3

'having limit steps.Zasandlbattiicensis .thereaf- ,Eech Aci "the tracks231e supported by ,Suitable frame structure such at'the'I'beams24jfromap associated ,b ase or support vstructure er2.6 which`isxshow-nmor may-taketiieiform of 4a concrete'foundationstruetureewhich'-is-'located at; one side oftheftruck'-stationelIaandrhas at the other side asecondrtruekestation|I-b.

s--'I-hef operating means or-effecting controlled Figure' is-a` view'similar-toFigurel showing 55 A,rxaovementlof the lemixer a t2 salonszuits tracks "$23 erably the operators station of the batch plant.l

The operator, therefore, by operation of the end and a downwardlyextending discharge means at the other end, said intake means and saiddischarge means being mounted for movement with said mixer, meansmounting the mixer on the support structure for both endwise andvertical movement between a lower loading position with its intake meansbelow the bin structure and an upper discharging position with itsdischarge means projecting beyond the support structure for delivery ofmaterial to a truck on a second driveway extending past said supportstructure,

and power-operated means for controlling movement of said mixer betweensaid positions.

V4. A batch plant comprising a bin structure having discharge meansdisposed at an elevation for discharge of material into a truck on adriveway beneath said discharge means, a support structure at one sideor" the bin structure, a mixer 36 at the truck station llb. It willbe-noted-ein .4

the Figure 3 position of the mixing apparatus that a truck can be drivenbelow the discharge means (0b of the bin structure to receiveaggregate-directly therefrom.

Figures 4 and 5 illustrate a modied construction in which4 the frame I4of the mixer` is supported by three parallel links 4I on each sideportion 26 of the foundation.l Also, a counterbalance weight 42 isprovided at each side of the mixer, and each weight 42 is suspended by a.cable 43 which is trained over a pulley 44 and connected at its otherend to the frame I4. Each pulley 44 is carried by a frame 46 on the mainsupportl structure and is housed within a guard 41. Otherwise, the mixerconstruction shown in .Figures 4 and 5 is similar in construction andmode of operation of thel form shown in Figures l to 3.

While I have shown certain preferred embodiments of the invention, itwill be apparent that the invention is capable of further variation andmodiiication and its scope should beV limited only by the scope of theclaims appended hereto.

I claim:

l. A batch plant comprising a bin structure having discharge m'eansdisposed at an elevation for discharge of material into a truck, a mixerhaving an upwardly extending intake hop- -per at one end and adownwardly extending discharge chute at the other end, said hopper andsaid chute being mounted for movement with said mixer, a supportstructure for the mixer, and

parallel linkage means mounting the mixer on the support structure forboth endwise "and verti- 'cal movement between a lower position withsaid intake hopper disposed below said discharge means and an upperpositionv with said discharge chute disposed at an elevation fordelivery of ymaterial to a. truck.

2. A concrete mixing apparatus comprising a support structure, a mixerhaving an upwardly opening intake means and a downwardly extendingdischarge means, said intake means and said discharge means beingmounted forl movement with said mixer, means including a parallellinkage mounting the mixer on the support'structure for movement betweena lower loading positionAv vand an upper discharging position, andpoweroperated means for moving said mixer between said positions.

i). A batch plant comprising a bin structure having discharge meansdisposed at an elevation .for discharge of material into a truck on adriveway beneath said discharge means, a support structure at one sideof the bin structure, a mixer having anupwardly Opennerintake means. atone having an upwardly opening intake means at one end and a downwardlyextending discharge means at the other end, said intake means and said.discharge means being mounted for movement with said mixer, meansmounting the mixer on the support structure for both endwise andvertical movement between a lower loading position with its intake meansbelow the bin structure and an upper discharging position with itsdischarge means projecting beyond the support structure for delivery ofmaterial to a truck on a second driveway extending past said supportstructure, a; power unit for operating said mixer and mounted formovement therewith, and power-operated means for controlling movement ofsaid mixe between said positions. l i

5. A batch plant comprising a bin structure having discharge meansdisposed at an elevation for discharge of material into a truck on adriveway beneath said discharge means, a support structure at one sideof the driveway, a pair of spaced apart inclined tracks mounted on the'support structure with their lower ends adjacent the driveway, a mixermounted for movement on said tracks and having its intake end facing thedriveway and its discharge end facing a second driveway at the oppositeside of said support structure, said mixer being mounted for movement onsaid inclined tracks between a lower position with its intake end incooperative rela'- tion with said discharge means and an upper positionwith the discharge end of said mixer disposed above the second drivewayat an elevation for delivery of material to a truck thereon. 6. A batchplant comprising a bin structure having discharge means disposed at anelevation for discharge of material into a truck on a driveway beneathsaid discharge means, a support structure at one side of the driveway, apair of spaced apart inclined tracks mounted on the sup- .port structurewith their lower ends adjacent the and power-operated means forcontrolling the movement of said mixei` along said tracks.

7. A batch plant comprising a bin structure having discharge meansdisposed above a driveway for trucks at an elevation for discharg'eofmaterial into a truck on the driveway, a mixer having an intake hopperand a discharge chute. said hopper and said chute being mounted formovement with said mixer, a, support structure for said mixer at oneside of the` driveway, and means mounting the mixer on its supportstructure for movement between a lower position with said intake hopperdisposed over said driveway and operatively related to said dischargemeans and an upper position for operatively relating the discharge chuteto a truck.

8. A batch plant comprising a bin structure having discharge meansdisposed above a driveway for trucks at an elevation for discharge ofmaterial into a truck, a mixer having an intake hopper and a dischargechute, said hopper yand said chute being mounted for movement with saidmixer, a support structure for said mixer at one side of the driveway,and means mounting the mixer on its support structure for movementbetween a position with said intake hopper disposed over said drivewayand operatively related to said discharge means and another position foroperatively relating the discharge chute to a truck and in which saidintake hopper` clears said driveway.

9. A batch plant comprising a bin structure having discharge meansdisposed at an elevation above a driveway for discharge of material intoa truck on the driveway, a mixer having an upwardly opening intakehopper at one end and a downwardly extending discharge chute at theother end, said hopper and said chute being mounted for movement withsaid mixer, and means mounting the mixer for both endwise and verticalmovement between a lower position with said intake hopper over saiddriveway and disposed below said discharge means and an upper positionwith said discharge chute disposed at an elevation for delivery ofmaterial to a truck and in which said intake hopper clears saiddriveway.

10. A batch plant comprising a bin structure having discharge meansdisposed at an elevation above a driveway for discharge of material intoa truck on the driveway, a mixer having an upwardly extending intakehopper at one end and a downwardly extending discharge chute at theother end, a support structure. for the mixer, and means includinginclined tracks for mounting the mixer on the support structure for bothendwise and vertical movement between a lower position with said intakehopper disposed over said driveway and below said discharge means and anupper position with said discharge chute disposed at an elevation fordelivery of material to a truck and in which said intake hopper clearssaid driveway.

ANTHONY G. ZICOVICH.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 864,450 Davis Aug. 27, 1,324,960Gasteiger Dec. 16, 1919 1,411,801 Morton Apr. 4, 1922 1,998,749 BallApr. 23, 1935 2,273,750 Clagett Feb. 17, 1942

